G E O R G I A

Light of the FutureBy: Buckswood International School - Tbilisi

Energy and Civilization

Energy consumption of the last 30 years far exceeds the amounts harnessed throughout the preceding centuries

Modern-day Energy Consumption Rates

Consumption-relevant problems: Climate Change Oil Transportation Hazards

Renewable Energy Sources

Saving on energy is our individual responsibility!

PROJECT TARGETS

Researching economic alternatives to incandescent light bulb, investigating properties and comparative analysis

Statistical research – over 700 people surveyed

Tbilisi 2013

Main phases of the project implementation:

1. Taking measurements to investigate the photometric properties of incandescent, fluorescent and diode lamps;

2. Evaluating the color temperature and the color rendering index and conditions observations across the light spectrum;

3. Assessing the impact of ultraviolet radiation produces by florescent and light-emitting diodes;

4. Ascertaining the economic effort of efficient alternatives for conventional light;

The human life expectancy with 60-70% depends on the quality of light and illuminance.

Biological influence of light and illuminance

Incandescent bulb100 W

Fluorescent bulb 20 W

LED bulb9,5 W

Photometric measurements of different bulbs with same illuminance and different powers

Incandescent Bulb100 W

Fluorescent Bulb20W

LED Bulb8w

Overall Luminous Efficiency

Observing Filament Wire

de4fColor Rendering Index (CRI) - RaSun light 100Incandescent lamp > 90LED lamp 80-90Fluorescent lamp 80-90

Color Temperature Scale

PHOTOS TAKEN BY USLED

Incandescent Fluorescent

Incandescent

Fluorescent

LED

Spectrum

Measuring Ultraviolet Radiation

Doctors’ Recommendation

Double-Glass Flask Bulb; Distance – 30 Cm; Protection Creams.

Electrical energy (KW·H) harnessed per month - 240 h

0

200

400

600

800

1000

1200

1400

1 m

onth

2 m

onth

s3

mon

ths

4 m

onth

s5

mon

ths

6 m

onth

s7

mon

ths

8 m

onth

s9

mon

ths

10 m

onth

s11

mon

ths

12 m

onth

s2

year

s3

year

s4

year

s5

year

s6

year

s7

year

s

Incandescent

Flourescent

LED

Costs of different Bulbs over time periods (month, year)Georgian

Lari

1 $ = 1.76 GEL

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THANK YOU FOR YOUR ATTENTION!